ML19329D590

Comments on Crystal River 3 & 4. Prepared by Environ Meteorology Branch of Air Resources Lab in Environ Science Svcs Administration

ML19329D590
Person / Time
Site:	Crystal River, 05000303
Issue date:	10/18/1967
From:	COMMERCE, DEPT. OF, NATIONAL OCEANIC & ATMOSPHERIC
To:
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ML19329D589	List: ML19329D588 ML19329D590
References
NUDOCS 8003160182
Download: ML19329D590 (1)

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x; Comments on Crystal River l' nits 3 and 4 Florida Power Corporation Prepared by Environmental Meteorology Branch Air Resources Laboratory Environmental Science Services Administration October 18, 1967 The meteorological conditions assumed for the accident case are con-se rvative . For the first period (0 - 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) Pasquill Type F, 1 m/sec, a ground source, and an invariant plume centerline was used, in addi-tion to a building wake dilution effect which amounted to an extra dilution factor of 1.5 at the site boundary of 1340m. For the remain-ing period up to 30 days the concentrations were averaged over a 221/2 degree sector which amounts to about a factor of 3 at a dis-tance of 103 meters as compared to an invariant plume centerline.

Since the plant is to be located 1 mile inland from the Gulf of Mexico shoreline, there probably will be very little stabilizing effect re-maining on a ground source because of the air having initially traveled over a smooth water surface.

In summary, there appear to be no unique meteorological situations that he.e.not been considered in the application. The net result of the atmospheric diffusion parame'. ars assumed for the accident case is a conservative set of dose calculations.

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